Miss Molly Robbins Designs a Seduction (Sydney Dovedale #4)
Jayne Fresina

But Molly Robbins' unique dress designs have caught the eye of society's elite, and if it means her own dress shop, Molly will make a deal with the devil himself—or his proxy, the notoriously naughty earl.
But becoming his mistress is not a part of their arrangement. It's right there in the contract's small print: No Tomfoolery. Until he proposes a scandalous new addendum to their contract…